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ID (ISN) del documento112345
Número CIS 12-0228
Año 2009
Número de serie RR 710
Autor(es) Véchot L.N., Hare J.A.
Health and Safety Executive
Título Assessment of the applicability of Dewar tests for screening hazardous waste treatment
Información bibliográfica HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2009. vi, 77p. Illus. Bibl.ref.
Acceso Internet Assessment_of_the_applicability_[INTERNET_FREE_ACCESS] [en inglés]
Resumen In the waste treatment sector, the exothermic reaction incompatibility of mixtures is often determined by recording the temperature rise after mixing samples in a beaker. Instead, the use of non-pressurized Dewar vessels has been proposed by some parts of the industry as an improvement, because their cooling rates and heat losses are closer to bulk containers. Temperature rises of between 6-10°C in the Dewar vessel over a period of 10 minutes have been suggested by the industry to indicate an exothermic reaction of concern, with gas bubblers being used to indicate any gas generation. Specialist inspectors have questioned the validity of these test methods for scale-up to large volumes. The objective of this work was therefore to investigate the range of applicability of the proposed technique. It was found, in particular, that the proposed ten-minute timescale could be insufficient to detect a runaway reaction. A number of other limitations to scale-up are discussed.
Descriptores (primarios) Reino Unido; mezclas exotérmicas; reacciones exotérmicas; valoración del riesgo; determinación experimental; eliminación de desechos peligrosos
Descriptores (secundarios) fiabilidad; instituciones publicas de prevencion; glosario; informe; descripción del procedimiento
Tipo de documento E - Libros, informes, actas
País / Estado o ProvinciaReino Unido
Tema(s) Polución, problemas de ambiente
Broad subject area(s) Riesgos químicos
Incendios, explosiones y riesgos mayores
Navegación por categoria(s) Waste collection and disposal